Collection guides and finding aids : Research and Invention
Geoffrey Austrian Research Notes on Herman Hollerith - [punch cards and data processing]
Harry F. Brown Papers [railroad electrification]
Henry Hemmendinger Papers [color science]
Jackson Hunsicker Papers [Memo Mate]
Elmer Ambrose Sperry Papers [Sperry Gyroscope Company]
Additional guides, finding aids, and other resources
Additional material related to research and invention may be available at the Hagley Library. For more information contact us: Ask Hagley.
Image: Stine Laboratory. DuPont Company Public Relations Department, HF_C019_024. Full Image